Finding the Fourth Proportional to 11,218,934.70, 16,828,402.05 and 9,305,747.10
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Solution
The fourth proportional to 11,218,934.70, 16,828,402.05 and 9,305,747.10 is: 13,958,620.65
Step by Step Solution
- Step 1: Write the proportion equation
11,218,934.70 : 16,828,402.05 = 9,305,747.10 : x - Step 2: Convert to fraction form
11,218,934.70/16,828,402.05 = 9,305,747.10/x - Step 3: Cross multiply
11,218,934.70x = 16,828,402.05 × 9,305,747.10 - Step 4: Simplify right side
11,218,934.70x = 156,600,853,574,421.56 - Step 5: Solve for x
x = 156,600,853,574,421.56/11,218,934.70 - Step 6: Final answer
x = 13,958,620.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.